Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and Melanotan 2 Reviews, Clinical Trials, and Safety Dangerous' tanning products promoted by influencers BBC News There has been a worrying increase in the number of young people using sunbeds. Some people are also using nasal sprays and injections with melanotan II in to boost their tan. This isn't Melanotan II (MT II) Peptide Therapy Beverly Hills